From: Josh Vermaas (
Date: Wed Jan 29 2014 - 14:50:06 CST

Hi Jose,

Linux is always better. :D I can't speak to the plans for if/when VMD
will compiled for 64 bit windows, but I do know that 90% of the VMD
power users I know (an admittedly biased pool) use some distribution of
linux when running VMD (the other 10% run Macs). In terms of distro, if
you choose to go down that path, it mostly boils down to personal
preference, as the install procedure and running VMD itself are
identical across distributions. If you are serious, I'd make a few
virtual machines first to see which environment you like first, as
different distros use different graphics managers that may drive you
crazy when it comes to day-to-day usability. VirtualBox is a good
program for playing with virtual machines, as its free, making the total
cost to try this out $0. It is also possible to run VMD from inside a
virtual machine. You won't be able to use CUDA, but at least you can get
around the 32-bit size limitations if you install a 64-bit operating system.

Good luck!
-Josh Vermaas

On 01/29/2014 12:46 PM, Villalain Boullon, Jose wrote:
> Dear all,
> I have been trying to load a DCD file (about 3.5 Gb) using VMD but VMD
> always crashes when it is loading something like 2-3000 steps. My PC
> runs Windows 8.1, i7, 16Gb of memory and a NVIDIA graphics card with
> 2Gb, so I do not think it is hardware but software. As it was
> commented before, it might be due to VMD being 32 bit (it seems that
> it does not happen using Linux) and therefore I will have to try and
> use the /bigdcd/ script if I continue using Windows. Because of that,
> I would like to ask some questions: Is there any chance that VMD will
> be compiled for 64 bit in the next future ?. If not, would it be
> better to use Linux instead of Windows to work with VMD?. In this
> case, is there any Linux distribution which is better suited to work
> with VMD or it really does not matter?.
> Thanks a lot.
> My very best regards,
> José.